Microstrip Antenna Gain Enhancement using Near Zero Refractive Index Metamaterials

Mohanna, S.; Tamandani, A.; Soltani, S.

doi:10.22061/jecei.2017.688

Document Type : Original Research Paper

Authors

¹ Faculty of Electrical and Computer Engineering, University of Sistan and Baluchestan, Zahedan, Iran,

² Department of engineering, Velayat University, Iranshahr, Iran

https://doi.org/10.22061/jecei.2017.688

Abstract

Some useful features of microstrip patch antennas are low profile, low weight and easy fabrication. However this type of antenna suffers from having a low gain, caused by propagation surface waves. In this paper, a new near zero refractive index metamaterial (MTM) unit cell is designed and fabricated as a superstrate over a Rectangular Microstrip Patch Antennas (RMPA). In order to obtain a maximum gain, the distance between the superstrate and the microstrip of the antenna has been optimized. Additionally, the feed position has been optimized to minimize the return loss. The operation frequency set at 10.3GHz and there are two resonance frequencies, one at f₁=10.1GH and the other at f₂=11.68GHz. The simulations and measured results indicated that the superstrate MTM structure, designed to place horizontally over the antenna, increases the gain to almost 2.4dB and 2.62dB at 10.1GHZ and 11.68GHZ respectively. Moreover, the radiation efficiency and directivity of the antenna are improved significantly.

Graphical Abstract

$Microstrip Antenna Gain Enhancement using Near Zero Refractive Index Metamaterials$

Keywords

20.1001.1.23223952.2017.5.1.11.9

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Journal of Electrical and Computer Engineering Innovations (JECEI)

Microstrip Antenna Gain Enhancement using Near Zero Refractive Index Metamaterials

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Volume 5, Issue 1 - Serial Number 9
January 2017
Pages 59-63

Microstrip Antenna Gain Enhancement using Near Zero Refractive Index Metamaterials

References

References

Send comment about this article

Volume 5, Issue 1 - Serial Number 9January 2017Pages 59-63

Volume 5, Issue 1 - Serial Number 9
January 2017
Pages 59-63